build: add test build target.

pkg/prebuild/cli/cli.go

@@ -37,6 +37,7 @@ Options:
     -s, --server      Set AppArmor for server.
     -b, --buildir DIR Root build directory.
     -F, --file        Only prebuild a given file.
+        --test        Enable test mode.
         --debug       Enable debug mode.
 `
 )
@@ -48,6 +49,7 @@ var (
 	full     bool
 	server   bool
 	debug    bool
+	test     bool
 	abi      int
 	version  float64
 	file     string
@@ -74,6 +76,7 @@ func init() {
 	flag.StringVar(&buildir, "b", "", "Root build directory.")
 	flag.StringVar(&buildir, "buildir", "", "Root build directory.")
 	flag.BoolVar(&debug, "debug", false, "Enable debug mode.")
+	flag.BoolVar(&test, "test", false, "Enable test mode.")
 }
 
 func Configure() {
@@ -118,6 +121,9 @@ func Configure() {
 		if debug {
 			builder.Register("debug")
 		}
+		if test {
+			prebuild.Test = true
+		}
 	} else if enforce {
 		builder.Register("enforce")
 	}

pkg/prebuild/directive/filter.go

@@ -43,6 +43,10 @@ func filterRuleForUs(opt *Option) bool {
 		return true
 	}
 
+	if prebuild.Test && slices.Contains(opt.ArgList, "test") {
+		return true
+	}
+
 	abiStr := fmt.Sprintf("abi%d", prebuild.ABI)
 	if slices.Contains(opt.ArgList, abiStr) {
 		return true

pkg/prebuild/directories.go

@@ -19,6 +19,9 @@ var (
 	// Either or not RBAC is enabled
 	RBAC = false
 
+	// Either or not we are in test mode
+	Test = false
+
 	// Pkgname is the name of the package
 	Pkgname = "apparmor.d"